sentence parallel
amount embellishment
apart foregoing wholly
arouse forehead woolly
village
already forty villain
all right foreign till
forfeit
amateur formally perpetual
grandeur formerly persuade
perspiration
appal fulfill
apparatus willful police
appetite policies
approximate guardian
opportunity guessing presence
opposite precede
disappoint imminent preceptor
disappearance immediately
accommodation fiend
choose commission siege
chosen grammar friend
inflammation yielding
boundary recommend
elementary summary seize
symmetrical receive
final committee receipt
finally
usual ledger succeed
usually legible proceed

ascend assassin recede
ascent dissimilar secede
discerning essential accede
discipline messenger intercede
discontent concede
discreet necessary supersede
descent necessity
passport

199. Words ending in a single consonant preceded by a single vowel,
if monosyllables, or if the last syllable is accented, double the
final consonant before the ending _-ed_ and _-ing_, but not before
_-ence_; as,

rob, rob_bed_, rob_bing_, rob_bers_.
confer, confer_red_, confer_ring_, confer_ence_.
transmit, transmit_ted_, transmit_ting_, transmi_ssion_.
impel, impel_led_, impel_ling_, imp_ulsion_.

Similar to the above are.

defer, infer, prefer, refer, transfer, occur (occurrence), abhor
(abhorrence), omit, remit, permit, commit, beset, impel, compel,
repel, excel (excellence), mob, sob, rub, skid.

If these words are not accented on the last syllable, the consonant
is not doubled; as,

benefit,